concept

Mormyridae

Also known as: Elephantfish

Facts (13)

Sources

Comparable Ages for the Independent Origins of Electrogenesis in ... journals.plos.org PLOS ONE 8 facts

claimThe study sampled Mormyroidea representatives including Gymnarchus niloticus (Gymnarchidae) and 19 representatives of the Mormyridae.

claimIn the superfamily Mormyroidea, the family Gymnarchidae (represented by Gymnarchus niloticus) is the sister taxon of the family Mormyridae, with 100% bootstrap support.

referenceT.H. Szabo described the development of the electric organ in Mormyridae in 1960.

referenceLavoué S, Bigorne R, Lecointre G, and Agnèse JF (2000) published 'Phylogenetic relationships of mormyrid electric fishes (Mormyridae, Teleostei) inferred from cytochrome b sequences' in 'Mol Phylogenet Evol' 14: 1–10.

referenceP.G.D. Feulner, F. Kirschbaum, V. Mamonekene, V. Ketmaier, and R. Tiedemann published 'Adaptive radiation in African weakly electric fish (Teleostei: Mormyridae: Campylomormyrus): a combined molecular and morphological approach' in the Journal of Evolutionary Biology in 2007, analyzing the adaptive radiation of Mormyridae.

claimThe family Mormyridae is divided into two lineages: the Petrocephalinae (containing the genus Petrocephalus) and the Mormyrinae (containing all remaining genera), with 100% bootstrap support.

referenceF. Kirschbaum and C. Schugardt analyzed reproductive strategies and developmental aspects in mormyrid and gymnotiform fishes in 2002.

referenceS. Lavoué, M.E. Arnegard, J.P. Sullivan, and C.D. Hopkins published 'Petrocephalus of Odzala offer insights into evolutionary patterns of signal diversification in the Mormyridae, a family of weakly electrogenic fishes from Africa' in the Journal of Physiology-Paris in 2008, examining signal diversification in Mormyridae.

Electroreception and electrogenesis - Wikipedia en.wikipedia.org Wikipedia 4 facts

claimWeakly electric fish utilize active electroreception by generating either 'pulse-type' electrical pulses, as seen in the Mormyridae family, or 'wave-type' quasi-sinusoidal discharges, as seen in the Gymnotidae family.

claimElephantfish locate prey by emitting short pulses from their electric organs and detecting signals modified by the electrical properties of surrounding objects; resistive objects increase pulse amplitude, while capacitative objects introduce distortions.

claimActive electrolocation is practiced by the order Gymnotiformes (knifefishes), the family Mormyridae (elephantfishes), and the monotypic genus Gymnarchus (African knifefish).

claimElephantfish (Mormyridae) from Africa possess specific tuberous electroreceptors in their skin known as Knollenorgans and Mormyromasts.

Editorial: Recent Advances in Electroreception and Electrogeneration frontiersin.org Frontiers 1 fact

referenceFukutomi and Carlson provided a historical review of how mormyrid weakly electric fish contribute to understanding the function of the corollary discharge in distinguishing sensory consequences of self-generated versus externally generated stimuli.